|
| US5397227 | 13 Ene 1994 | 14 Mar 1995 | BASF Corporation | Apparatus for changing both number and size of filaments |
| US5533883 | 18 Oct 1993 | 9 Jul 1996 | BASF Corporation | Spin pack for spinning synthetic polymeric fibers |
| US5575063 | 23 May 1995 | 19 Nov 1996 | BASF Corporation | Melt-spinning synthetic polymeric fibers |
| US5578330 | 23 Mar 1995 | 26 Nov 1996 | Conoco Inc. | Pitch carbon fiber spinning apparatus |
| US5620644 | 23 May 1995 | 15 Abr 1997 | BASF Corporation | Melt-spinning synthetic polymeric fibers |
